Technology in development today could radically change the future of air and space exploration. Nearly silent electric aircraft could ferry people and packages around cities, a sprawling radio telescope array on the far side of the Moon could reveal new secrets about the universe, and astronauts on long-duration missions could grow their own medici Technology in development today could radically change the future of air and space exploration. Nearly silent electric aircraft could ferry people and packages around cities, a sprawling radio telescope array on the far side of the Moon could reveal new secrets about the universe, and astronauts on long-duration missions could grow their own medici Read More